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Phys Rev Lett. 2010 Oct 15;105(16):160501. Epub 2010 Oct 11.

Hybrid long-distance entanglement distribution protocol.

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1
QUANTOP, The Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen Ø, Denmark.

Erratum in

  • Phys Rev Lett. 2012 May 25;108(21):219901.

Abstract

We propose a hybrid (continuous-discrete variable) quantum repeater protocol for long-distance entanglement distribution. Starting from states created by single-photon detection, we show how entangled coherent state superpositions can be generated by means of homodyne detection. We show that near-deterministic entanglement swapping with such states is possible using only linear optics and homodyne detectors, and we evaluate the performance of our protocol combining these elements.

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